*{
	padding: 0;
	margin: 0;
}
.all{
	margin: 0 auto;
	width: 1300px;
	
}
.clear{
	clear: both;
}
ul{
	list-style: none;
}
a{
	text-decoration: none;
}

header{
	margin: 0 auto;
	width: 1300px;

	text-align: center;
}


nav{
	text-align: center;
}
nav ul li{
	display: inline;
}
nav ul li a{
	display: inline-block;
	height: 40px;
	line-height: 40px;
	padding-left: 20px;
	padding-right: 20px;
	color: black;
}
nav ul li a:hover{
	background-color: gray;
}


section{
	height: 1050px;
	background-color: #ebebeb;
	padding-top: 20px;
	padding-left: 60px;
	padding-right: 60px;
}
.main{
	float: left;
}

article{
	padding-top: 20px;
	padding-left: 20px;
	padding-right: 60px;
	text-align: center;
	width: 660px;
	background-color: white;
}
.article_header h4{
	font-size: 22px;
}
.article_header p{
	margin-top: 10px;
	font-size: 14px;
}
.article_header span{
	color: orange;
}

.article_content{
	margin-top: 20px;
}
.article_content ul li{
	text-align: left;
	margin-top: 30px;
	
}
.article_content ul li hr{
	margin: 0 auto;
	width: 300px;
}
.article_content ul li span{
	color: orange;
}
.article_content ul li input{
	border: 1px solid gray;
	border-radius: 5%;
	background-color: #f9f9f7;
}
.article_footer{
	margin-top: 23px;
}
.article_footer p{
	color: gray;
	font-size: 14px;
	padding-top: 20px;
	padding-bottom: 30px;
	text-align: left;
}


.main_bottom_top{	
	padding-top: 20px;
	padding-bottom: 20px;
	padding-left: 20px;
	padding-right: 60px;
	height: 80px;
	width: 660px;
	margin-top: 50px;
	background: white;
}
.main_bottom_top ul li{
	float: left;
}
.main_bottom_top ul li span{
	color: orange;
}
.main_bottom_top_p_top{
	margin-left: 20px;
	font-size: 20px;
}
.main_bottom_top_p_bottom{
	margin-top: 5px;
	margin-left: 30px;
	font-size: 14px;
}

.main_bottom_bottom {
	padding-top: 30px;
	padding-bottom: 30px;
	width: 740px;
	text-align: center;
	
}
.main_bottom_bottom input{
	background-color: #FFA500;
	border: none;
	padding: 10px;
}

aside{
	float: left;
	width: 350px;
	padding-left: 20px;
}
.contact{
	padding-left: 20px;
	width: 260px;
	background-color: white;
	padding-bottom: 20px;
}
.contact_p1{
	font-size: 20px;
	padding-top: 10px;
	padding-bottom: 10px;

}
 .contact_hr1{
	float: left;
	border: 1px #e67e22 solid;
	width: 50px;
}
.contact_hr2{
	float: left;
	border: 1px #ebebeb solid;
	width: 200px;
}
.lianxi p{
	margin-top: 20px;
}
.lianxi .contact_p_color{
	color: #E67E22;
}

.download{
	margin-top: 30px;
	padding-right: ;
	padding-left: 20px;
	width: 260px;
	background-color: white;
	padding-top: 20px;
	padding-bottom: 20px;
}
.download p{

	font-size: 20px;
	padding-top: 10px;
	padding-bottom: 10px;
}
.download input{
	color: white;
	font-size: 12px;
	margin-top: 20px;
	border: none;
	background-color: #E67E22;
	padding: 8px 40px;
}



footer{
	text-align: center;
	color: #555555;
	background-color: black;
	height: 60px;
	line-height: 60px;
}